Cement.



STAWNT QFFICE' AEnAnAm a. rEssEEn, or N wAm. NEW JERSEY, ASSIGNOR, BY mEsNE AssIeN- MENTS, TO NEW JERSEY PATENT COTE]? CORPORATION o' NEw JERSEY.

To all zohom it may concern. v

. Be it known that I, ABRAHAM G. TEssL R,

a citizen of Russia, and a resident of films is used, as, for example, ichlorhy- Newark, in the county of Essex and State of New Jersey, have discovered a certain new, and useful Cement, of-which the fol lowing is a description. My discovery relates to a new cement and has for its object to produce a cement which may be used to secure together films of all kinds, particularly those used in the movingicture art. This cement is comparatively inexpensive, may be used with all kinds of' inflammable and non-inflammable films, does not evaporate too quickly, has but l1ttle odor, makes .a good union, and is trans parent.

It is well known to those familiar with the moving picture art,'that the films, in

use therein are made of diflerent substances, such as celluloid, acetyl cellulose (cellulose acetate), and acetyl cellulose combined with gums and other substances such as camphor and the like, and that films made of celluloid are inflammable, while those made of acetyl cellulose. (cellulose acetate), or acetyl cellulose combined with gums or other substances such as camphor and the like are non-inflammable. A cement which will unite 3o'efliciently all the different kinds of films,

and which will not evaporate too quickly ,when kept on hand, has long been desired.

My new cement has been found tobe particularly efficient for the purpose des red and has been combined with a new to the diflerent kinds of jfilms with which it must be used- The proportions hereafter iven- About 4% base has been found satisfactory,

a convenient base consisting of 3% non-in flammable film material, for example, acetyl cellulose, or acetyl cellulose combined with gums or othersubstances such as camphor Specification of Letters latent. Application filed may 4, 1910. Serial No. 559,243.

A suitable base for the cement is necessary ANY, 0E WEST ORANGE, NEW JERSEY, A.

cEmEm'.

Patented Dec. 29,1914.

and the. like and 1% inflammable film material, for example, celluloid. As a uniting medlum, a quick. solvent forall kinds-of drin or its e uivalent. Prefera 1y, however, I use about 47% acetone and 23% chloroform. These two substances work wen. -tcgthelfi sp y whenused with the other ingredients hereinafterset forth. The" A chloroformffisnecessary; where acetyl cellu lose and acetone'areu'sed, in orderto render;

the cement transparent. A'further ingredi ent fmayconsist of anilin or about '27% -q di which decreases the volaiy 0f h above substances and has other I ticular materials set forth may be varied and some. omitted or others "substituted therefor, 1f the desiredrelation ofthe different ingredients to each other and to the articles with which the cement is to be used are maintained.

Having thus described one embodiment of mylnvention what I claim and desire to protect by Letters Patent is:.

1. A cement composed of non-inflammable film material, infiammablefilm material, acetone, chloroform, glacial acetic ac d and amyl acetate. 1 2. A cement composedof 3% non-inflammable film material, 1% inflammable film material, 47% acetone, 21-}% chloroform, 215% glacial acetic acid, and 6% amyl acetate. I

3. A cementing material including celluoid, acetyl cellulose, acetone, and chloroe orm..

- 4. A cementing material inclu ding cellu- I loid and acetyl cellulose, a solvent therefor, and chloroform. I

5. A fluid cementing material includingv 8. A cementing material including cellu- 1o acetyl cellulose, acetone, chloroform, and a 'loid and acetyl cellulose, a solvent therefor, volatility decreaseinchloroform, and a volatility decreaser.

6. A cementing material including cellu- This specification signed and witnessed 5 loid,'acetyl cellulose, acetone, chloroform, this 30 clay of April 1910. I

and a volatility decreaser. ABRAll G. TESSLJER.

7. A fluid cementing material including Witnesses:

1 acetyl cellulose, a solvent therefor, chloi'o- WARREN H. SMALL, form, and a, volatility decrecsei'. J mm M. CANFinLn. 

